CVE-2021-23253 Other in Opera Mini for Android

Medium 5.3 Published Updated

Opera Mini for Android displays URLs left-aligned, allowing attackers to spoof domains by hiding the true TLD, facilitating phishing attacks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-23253?

CVE-2021-23253 is a medium-severity vulnerability in Opera Mini for Android, published on 11 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Opera Mini for Android below 53.1 displays URL left-aligned in the address field. This allows a malicious attacker to craft a URL with a long domain name, e.g. www.safe.opera.com.attacker.com. With the URL being left-aligned, the user will only see the front part (e.g. www.safe.opera.com…) The exact amount depends on the phone screen size but the attacker can craft a number of different domains and target different phones. Starting with version 53.1 Opera Mini displays long URLs with the top-level domain label aligned to the right of the address field which mitigates the issue.

Which versions are affected by CVE-2021-23253?

It affects 1 product.

Products include Opera Opera Mini.

How do I fix CVE-2021-23253?

No fix has been published for CVE-2021-23253 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-23253 being exploited?

There is no known exploitation of CVE-2021-23253 in the wild and no public exploit code.

Sources

Also known as GHSA-prpx-5phw-fx4m.

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